BAGHDAD, April 20 — American military commanders in Baghdad are trying a radical new strategy to quell the widening sectarian violence by building a 12-foot-high, three-mile-long wall separating a historic Sunni enclave from Shiite neighborhoods.

Soldiers in the Adhamiya district of northern Baghdad, a Sunni Arab stronghold, began construction of the wall last week and expect to finish it within a month. Iraqi Army soldiers would then control movement through a few checkpoints. The wall has already drawn intense criticism from residents of the neighborhood, who say that it will increase sectarian tensions and that it is part of a plan by the Shiite-led Iraqi government to box in the minority Sunnis.

A doctor in Adhamiya, Abu Hassan, said the wall would transform the residents into caged animals.

“It’s unbelievable that they treat us in such an inhumane manner,” he said in a telephone interview. “They’re trying to isolate us from other parts of Baghdad. The hatred will be much greater between the two sects.”

“The Native Americans were treated better than us,” he added.

The Bush administration shows its genius once again! What a novel idea, walling off half a city! I wonder why no one ever thought of it before?